RT Journal Article
T1 Unconventional long range triplet proximity effect in planar YBa_2Cu_3O_7/La_0.7Sr_0.3MnO_3/YBa_2Cu_3O_7 Josephson junctions
A1 Sanchez-Manzano, David
A1 Mesoraca, S.
A1 Cuellar, F.
A1 Cabero, M.
A1 Rodriguez-Corvillo, S
A1 Rouco Gómez, Víctor
A1 Mompean, F
A1 Garcia-Hernandez, M
A1 Gonzalez-Calbet, J. M
A1 Feuillet-Palma, C
A1 Bergeal, N.
A1 Lesueur, J
A1 León Yebra, Carlos
A1 Villegas, Javier E.
A1 Santamaría Sánchez-Barriga, Jacobo
AB The proximity effect between superconductors and ferromagnets may become long range due to the generation of triplet pairs. The recent finding of a long, one micron-range unconventional Josephson effect between YBa_2Cu_3O_7 high Tc cuprates separated by a half metallic La_0.7Sr_0.3MnO_3 manganite ferromagnet has uncovered a novel unconventional triplet proximity effect. In this paper, we examine the temperature dependence of the critical current in planar Josephson junctions. We find that the critical current-normal resistance product follows the predictions of traditional superconductor-normal metal-superconductor junctions, which implies that triplet pairs in a ferromagnet are transported in the diffusive limit similarly to singlet pairs in a normal metal. This result calls for theoretical studies of the new triplet Josephson effect and underlines its potential in future superconducting spintronics.
PB IOP Publishing Ltd
SN 0953-2048
YR 2023
FD 2023-07-01
LK https://hdl.handle.net/20.500.14352/87519
UL https://hdl.handle.net/20.500.14352/87519
LA eng
NO © 2023 The Author(s).Work supported by Spanish AEI through Grant PID2020-118078RB-I00 and by Regional Government of Madrid CAM through SINERGICO Project Y2020/NMT-6661 CAIRO-CM. Work at CNRS/Thales lab supported by ERC Grant No. 647100 SUSPINTRONICS', French ANR Grant ANR-15-CE24-0008-01 SUPERTRONICS' and COST action Nanocohybri'. We acknowledge funding from Flag ERA ERA-NET To2Dox Project. J E V thanks C Ulysse and L Vila for collaboration in related projects.
NO Unión Europea. H2020
NO Ministerio de Ciencia, Innovación (MICINN)
NO Comunidad de Madrid
NO Agence nationale de la recherche (ANR)
DS Docta Complutense
RD 18 abr 2025